76548649 has 2 divisors, whose sum is σ = 76548650. Its totient is φ = 76548648.

The previous prime is 76548611. The next prime is 76548683. The reversal of 76548649 is 94684567.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72675625 + 3873024 = 8525^2 + 1968^2 .

It is a cyclic number.

It is not a de Polignac number, because 76548649 - 2¹¹ = 76546601 is a prime.

It is not a weakly prime, because it can be changed into another prime (76548949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38274324 + 38274325.

It is an arithmetic number, because the mean of its divisors is an integer number (38274325).

Almost surely, 2^76548649 is an apocalyptic number.

It is an amenable number.

76548649 is a deficient number, since it is larger than the sum of its proper divisors (1).

76548649 is an equidigital number, since it uses as much as digits as its factorization.

76548649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The square root of 76548649 is about 8749.2084784854. The cubic root of 76548649 is about 424.5992050801.

The spelling of 76548649 in words is "seventy-six million, five hundred forty-eight thousand, six hundred forty-nine".